The term "cupid itches" refers to the feeling of infatuation and desire for someone. However, there are several synonyms for this expression that may also be used to convey similar sentiments. Some examples include "butterflies in your stomach," "heart aches," "lovestruck," "head over heels," "enchanted," or "smitten." These terms all have slightly different connotations, but essentially express the same idea - feeling drawn to someone in a powerful, romantic way. Whatever phrase you use, the sensation of "cupid itches" is a natural and exciting part of falling in love.